Evaluasi Penerapan Area Traffic Control System Terhadap Kinerja Persimpangan

Abstract

Research was carried out at the intersection of Pelangi in Medan city because at the intersection it has a large enough density and density. In connection with this, research needs to be done using the Indonesian Road Capacity Manual 1997. This study aims to analyze whether the use of signals (traffic light) at the Pelangi intersection still has a good performance in overcoming the road traffic flow at the intersection. Calculation of analysis and simulation applied in this study uses MKJI 1997 method. The primary data taken in the research are road geometric, environmental conditions, parking distance, traffic volume, and signal usage. While the secondary data needed is data on the population of Medan City. Based on the results of data analysis, the intersection degree of saturation (DS) is 0.74 and the vehicle delay is 38.75 seconds. In accordance with DS value and delay value, the performance of Pelangi intersection is in the category (Level Of Service) D where the traffic flow is less stable and sometimes often causes congestion. Deviation handling is done by changing the lost time (LTI) and green time (g) in accordance with the standard normal value of green intervals in MKJI intended to shorten cycle time (c). From the simulation results with cycle time (c) = 130 seconds and time lost (LTI) = 20 seconds, the value of Ds = 0.59 and a delay of 15.22 seconds is obtained. With the results of the simulation calculation, it can increase the capacity at the Pelangi intersection and increase comfort for road users because of shorter cycle times.